21044+3551 SEI 1390

21^h 04^m 26.65^s +35° 51' 19.3" P.A. 343.00 sep 17.4 mag 10.81,11.60

Coord 2000	21044+3551	Discov num	SEI1390	Comp		Coord arcsec 2000	21 04 26.65 +35 51 19.3
Date first	1941	Date last	2017	Obs	11
Pa first	344	Pa last	343.2	P.A. Now (θ)	343.2°
Sep first	17.4	Sep last	17.4	Sep. Now (ρ)	17.4"
Mag pri	10.81	Mag sec	11.60	delta mag (ΔM)	0.79	Spectral class
Pri motion ra	-004	Sec motion ra	-006
Pri motion dec	-005	Sec motion dec	-003
Notes

rPM=0.422

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2713-01419-1

Gaia DR2

1868214330282839040

WDS 21044+3551 SEI 1390 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		cited in ADS (Aitken Double Star Cat.), 1932

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21044+3551	SEI1390		1998	4	343	17.5	10.81	11.60		D	210426.65+355119.3
21044+3551	SEI1390		2002	5	343	17.5	10.81	11.60		D	210426.65+355119.3
21044+3551	SEI1390		2013	6	343	17.7	10.81	11.60			210426.65+355119.3
21044+3551	SEI1390		2017	8	343	17.4	10.81	11.60			210426.65+355119.3

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WDS 21044+3551 SEI 1390 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21044+3551 SEI 1390 : MEASURES

No records found.

WDS 21044+3551 : VIRTUAL EYEPIECE

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WDS 21044+3551 : ALADIN DSS IMAGE @ 21^h 04^m 26.65^s +35° 51' 19.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21044+3551 SEI 1390 : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		21044+3551	SEI1390		343	17.4
Show		21042+3552	TDT2724		181	1.1	3
Show		21048+3545	SEI1392		338	4.0	8
Show		21042+3542	SEI1387		133	9.1	11
Show		21050+3559	SEI1395		133	21.1	11
Show		21035+3549	B 2	A,BC	250	138.5	12
Show		21054+3550	SEI1396		13	27.7	13
Show		21035+3549	B 2	BC	28	2.8	14
Show		21030+3549	SEI1378		222	29.0	18
Show		21043+3608	HJ 1610		245	11.0	18
Show		21041+3609	SEI1386		152	25.9	19
Show		21029+3554	J 1078	AB	112	2.7	20
Show		21029+3554	J 1078	AC	137	24.4	20
Show		21048+3531	TDT2727	Ba,Bb	170	0.4	20
Show		21048+3531	GRV 410	BC	82	17.2	20
Show		21048+3531	S 773	AB	30	86.3	22
Show		21061+3558	SEI1401		333	10.5	22
Show		21042+3530	SEI1388		211	22.1	22
Show		21056+3533	TDT2736		282	0.4	24
Show		21058+3610	SEI1398		36	30.5	26
Show		21050+3526	STF2753		335	29.3	27
Show		21028+3534	BTG 6	BC	235	10.6	28
Show		21028+3534	BTG 6	BD	274	15.9	28
Show		21028+3534	SEI1375	AB	339	6.5	28
Show		21028+3534	SEI1376	AC	270	11.1	28
Show		21067+3554	GRV 418		216	58.1	28
Show		21059+3528	TDT2744		36	0.6	30
Show		21046+3628	SEI1391		329	23.9	37
Show		21062+3520	GRV 417		143	41.2	38
Show		21013+3554	SEI1368		57	13.3	39
Show		21076+3546	ES 2254		275	8.6	39
Show		21037+3630	SEI1383		124	9.3	40
Show		21012+3602	CLP 1	BC	150	267.2	41
Show		21012+3602	CLP 1	AB	39	74.3	41
Show		21066+3623	SEI1405		314	8.5	41
Show		21058+3633	SEI1397		343	22.0	45
Show		21011+3532	SEI1366		279	22.9	46
Show		21025+3512	CRB 136		267	20.1	46
Show		21030+3507	TDS1113		9	2.1	48
Show		21075+3622	TDT2768		171	0.6	49
Show		21018+3630	SEI1372		181	24.8	51
Show		21087+3551	SEI1414	AB	34	10.4	52
Show		21087+3551	TOB 211	AC	355	23.5	52
Show		21003+3543	SEI1361		281	20.8	52
Show		21038+3643	SEI1385		240	24.8	53
Show		21085+3608	SEI1413		111	29.6	53
Show		21002+3547	POP 81		204	5.9	53
Show		21085+3614	SEI1412		64	9.3	54
Show		21001+3608	TDT2687		356	1.5	55
Show		21059+3459	POP 24		247	8.2	55
Show		21084+3618	CRB 138		128	22.9	56

WDS 21044+3551 : COMPONENTS

	A
B	pa=346.2° sep=17.15"

21044+3551 A

Componente originario normalizzato	AB		Coord arcsec 2000	210426.65+355119.3		Mag	10.81		PmRA	-4.00
PmDE	-5.0		Tycho2	2713-01419-1

Tycho2

Tycho2	2713-01419-1	Pflag		RAmdeg	316.11104673	DEmdeg	35.85538938
PmRA	-4.1	PmDE	0.1	E RAmdeg	29	E DEmdeg	28
E pmRA	2.4	E pmDE	2.3	EpRAm	1986.52	EpDEm	1987.13
Num	5	Q RAmdeg	0.6	Q DEmdeg	1.1	Q pmRA	0.5
Q pmDE	1.2	BTmag	12.015	E BTmag	0.093	VTmag	10.814
E VTmag	0.051	Prox	999	TYC	T	HIP
CCDM		RAdeg	316.11105750	DEdeg	35.85539167	EpRA 1990	1.74
EpDE 1990	1.79	E RAdeg	40.1	E DEdeg	36.3	Posflg
Corr	0.2

21044+3551 B

Componente originario normalizzato	AB		Coord arcsec 2000	210426.31+355136.0		Mag	11.6		PmRA	-6.00
PmDE	-3.0		Calc delta mag	0.79		Calc coord	yes